Transparent Proxy/Gateway that work in Amazon VPC

Hi Guys,

I was asked to investigate if anyone has tried to setup a SmoothWall or similar fork/distro at Amazon in order to white/blacklist sites that EC2 instances can reach out to.

So for example, we would like to block ALL outbound HTTP/HTTPS traffic except to particular sites (by hostname) like api.facebook.com / graph.facebook.com / api.twitter.com

What we don't want to do is setup the proxy so that we have adjust code to put in a Proxy IP, User ID, PW ... it should be Transparent.. thus setting the Gateway IP of the VPC machines to this instance.

Has anyone setup a VPC farm and then used a product other than Squid or the built-in ACL of AWS to do this? If so, can you please share your experience and limitations.

Thanks.

anybody?

I've used untangle to do this. It needs to be inline between your network and the Internet though.